Output cable: Standard 2.54mm Breadbaord compatible with Arduino and other mostly used devices

Storage temperature: -20~60C
Discharge temperature:-20~60C
Charge temperature:0~45C.here is the link for charger : http://www.arduinopak.com/Prd_Detail.aspx?Prd_ID=20917if you use our Imax b3 charger which is about 1A per cell and our cell being real capacity 2000mAh per cell can take 1.5 to 2 hours to fully charge, we suggest you use Imax B3 charger to maintain your battery pack life longer.if you dont have smart balance charger this battery can also be charged with ordinary 8.4V to 9V charger adapter from input/output barrel jack of the battery, this method may effect the life of your battery pack.